12921840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:287

約数の個数: 120

約数和(自身を含む): 44046288

約数和(自身を除く): 31124448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 131, 137, 144, 180, 240, 262, 274, 360, 393, 411, 524, 548, 655, 685, 720, 786, 822, 1048, 1096, 1179, 1233, 1310, 1370, 1572, 1644, 1965, 2055, 2096, 2192, 2358, 2466, 2620, 2740, 3144, 3288, 3930, 4110, 4716, 4932, 5240, 5480, 5895, 6165, 6288, 6576, 7860, 8220, 9432, 9864, 10480, 10960, 11790, 12330, 15720, 16440, 17947, 18864, 19728, 23580, 24660, 31440, 32880, 35894, 47160, 49320, 53841, 71788, 89735, 94320, 98640, 107682, 143576, 161523, 179470, 215364, 269205, 287152, 323046, 358940, 430728, 538410, 646092, 717880, 807615, 861456, 1076820, 1292184, 1435760, 1615230, 2153640, 2584368, 3230460, 4307280, 6460920, 12921840]

約数ペア:

[(1, 12921840), (2, 6460920), (3, 4307280), (4, 3230460), (5, 2584368), (6, 2153640), (8, 1615230), (9, 1435760), (10, 1292184), (12, 1076820), (15, 861456), (16, 807615), (18, 717880), (20, 646092), (24, 538410), (30, 430728), (36, 358940), (40, 323046), (45, 287152), (48, 269205), (60, 215364), (72, 179470), (80, 161523), (90, 143576), (120, 107682), (131, 98640), (137, 94320), (144, 89735), (180, 71788), (240, 53841), (262, 49320), (274, 47160), (360, 35894), (393, 32880), (411, 31440), (524, 24660), (548, 23580), (655, 19728), (685, 18864), (720, 17947), (786, 16440), (822, 15720), (1048, 12330), (1096, 11790), (1179, 10960), (1233, 10480), (1310, 9864), (1370, 9432), (1572, 8220), (1644, 7860), (1965, 6576), (2055, 6288), (2096, 6165), (2192, 5895), (2358, 5480), (2466, 5240), (2620, 4932), (2740, 4716), (3144, 4110), (3288, 3930)]